[PATCH] NFS: Fabricate fscache server index key correctly

[David Howells]

When fabricating a server index key for fscache, we should clear the index key
buffer before starting to fill it in, not in the middle.

Reported-by: James Pearson <james-p@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Acked-by: Steve Dickson <steved@xxxxxxxxxx>
---

 fs/nfs/fscache-index.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfs/fscache-index.c b/fs/nfs/fscache-index.c
index 7cf2c4699b08..777b055063f6 100644
--- a/fs/nfs/fscache-index.c
+++ b/fs/nfs/fscache-index.c
@@ -74,11 +74,10 @@ static uint16_t nfs_server_get_key(const void *cookie_netfs_data,
 	struct nfs_server_key *key = buffer;
 	uint16_t len = sizeof(struct nfs_server_key);
 
+	memset(key, 0, len);
 	key->nfsversion = clp->rpc_ops->version;
 	key->family = clp->cl_addr.ss_family;
 
-	memset(key, 0, len);
-
 	switch (clp->cl_addr.ss_family) {
 	case AF_INET:
 		key->port = sin->sin_port;

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